\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Main results (OLS with p-values)}
\begin{tabular*}{\textwidth}{@{\hskip\tabcolsep\extracolsep\fill}l*{8}{c}}
\toprule
                    &\multicolumn{2}{c}{Planned Cont.}          &\multicolumn{2}{c}{Planned HC}             &\multicolumn{2}{c}{\makecell{Support for\\ gov. reg.\\ (z-score)}}&\multicolumn{2}{c}{\makecell{Change cont.\\ wrt. gov. reg.\\ (z-score)}}\\\cmidrule(lr){2-3}\cmidrule(lr){4-5}\cmidrule(lr){6-7}\cmidrule(lr){8-9}

Deont.              &      -0.290\sym{*}  &      -0.303\sym{**} &       0.416\sym{***}&       0.410\sym{***}&       0.109\sym{***}&       0.110\sym{***}&       0.140\sym{***}&       0.132\sym{***}\\
                    &     (0.055)         &     (0.043)         &     (0.003)         &     (0.003)         &     (0.009)         &     (0.008)         &     (0.001)         &     (0.001)         \\
\addlinespace
Conseq.             &      -0.141         &      -0.139         &       0.289\sym{**} &       0.249\sym{*}  &       0.107\sym{***}&       0.097\sym{**} &       0.100\sym{**} &       0.084\sym{**} \\
                    &     (0.346)         &     (0.348)         &     (0.037)         &     (0.069)         &     (0.008)         &     (0.015)         &     (0.015)         &     (0.039)         \\
\midrule
Observations        &       3,447         &       3,430         &       3,416         &       3,399         &       3,447         &       3,430         &       3,441         &       3,424         \\
\bottomrule
\multicolumn{9}{l}{\footnotesize \textit{p}-values in parentheses}\\
\multicolumn{9}{l}{\footnotesize \sym{*} \(p<0.1\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\)}\\
\end{tabular*}
\end{table}
